ACCOUNTS RECEIVABLE (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable under normal 30 day terms	$ 1,406,665	$ 1,322,680
Financed contracts:
Short-term	22,754	332,209
Current portion of long-term	896,236	1,697,577
Long-term, net of current portion	675,683	904,410
Total accounts receivable	3,001,338	4,256,876
Less allowance for doubtful accounts	(101,079)	(112,054)
Accounts receivable, net	$ 2,900,259	$ 4,144,822