Not an expert on these types of domains.. I would have thought not a lot of value would be there due to the hyphen, however, I see some promising sale history. Maybe another member can chime into what actually makes these valuable.
As an example if you look at "e-14.com" it was regged by a company named element 14.. Thus, I would put low $xxx for resale and a potential high $x,xxx value if you could find the right end user. Honestly, I would not get your hopes up as there are very few sales in the last 5 years.
If it was my domain I would just park it and hope the right end user came and gave me an offer.