ACCOUNTS RECEIVABLE (Details)	Jun. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)	Jun. 30, 2014 CET 21 [Member] Ceska Sporitelna [Member] USD ($)	Jun. 30, 2014 CET 21 [Member] Ceska Sporitelna [Member] CZK	Dec. 31, 2013 CET 21 [Member] Ceska Sporitelna [Member] USD ($)	Dec. 31, 2013 CET 21 [Member] Ceska Sporitelna [Member] CZK
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unrelated customers	$ 206,789,000	$ 189,082,000
Less: allowance for bad debts and credit notes	(16,159,000)	(16,191,000)
Related parties	537,000	1,479,000
Less: allowance for bad debts and credit notes	(468,000)	(289,000)
Total accounts receivable	190,699,000	174,081,000
Receivables pledged as collateral related to factoring agreement			$ 16,200,000	324,800,000	$ 700,000	13,100,000