Liquidity and Going Concern (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014
Line of Credit Facility [Line Items]
Cash	$ 2,031,000	$ 1,871,000	$ 1,764,000	$ 1,938,000
Working capital	2,367,000
Net loss	712,000	234,000
Net cash provided by operating activities	358,000	$ 602,000
Long-term Debt	11,006,000		10,988,000
Comerica Bank | Colorado
Line of Credit Facility [Line Items]
Letters of credit outstanding, amount	83,000		83,000
Main Street Capital Corporation | Senior secured term loan facility
Line of Credit Facility [Line Items]
Revolving loan facility, maximum borrowing capacity	11,000,000
Main Street Term Loan, net of unamortized debt discount based on an imputed interest rate of 12%; $179 at March 31, 2016 and $197 at December 31, 2015, respectively.	9,000,000
Long-term Debt	8,821,000		8,803,000
Revolving loan facility, unused borrowing capacity	2,000,000
Main Street Capital Corporation | Senior secured revolving loan facility
Line of Credit Facility [Line Items]
Revolving loan facility, maximum borrowing capacity	2,000,000
Long-term Debt	400,000		$ 400,000
Revolving loan facility, unused borrowing capacity	$ 1,395,000
Main Street Capital Corporation
Line of Credit Facility [Line Items]
Common shares owned, stockholder	7,711,517
Common shares owned, stockholder, percentage	22.00%