Stockholders' Equity - Summary of Stock Option Activity (Details)	12 Months Ended
	Dec. 31, 2017 USD ($) $ / shares shares
No. of shares, Abstract
No. of Shares, Beginning Balance | shares	1,304,788
Expired, No. Of Shares | shares	(2,736)
No. of Shares, Ending Balance | shares	1,302,052
Exercisable, No. Of Shares | shares	1,302,052
Weighted average exercise price, Abstract
Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 0.22
Expired, Weighted Average Exercise Price | $ / shares	12.13
Weighted Average Exercise Price, Ending Balance | $ / shares	0.20
Exercisable, Weighted Average Exercise Price | $ / shares	$ 0.20
Weighted average remaining contractual term, Abstract
Weighted Average Remaining Contractual Term, Balance outstanding	3 years 3 months 18 days
Weighted Average Remaining Contractual Term, Exercisable	3 years 3 months 18 days
Aggregate intrinsic value, Abstract
Aggregate Intrinsic Value, Balance outstanding | $	$ 1,717,000
Aggregate Intrinsic Value, Exercisable | $	$ 1,717,000