FAIR VALUE MEASUREMENTS - Schedule of Fair Values of Financial Assets and Liabilities (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Assets:
FX Contracts	$ 0	$ 600,000
Total assets at fair value		600,000
Liabilities:
FX Contracts		1,900,000
2013 Interest Rate Swap		900,000
Total liabilities at fair value		2,800,000
Level 1
Assets:
FX Contracts		0
Total assets at fair value		0
Liabilities:
FX Contracts		0
2013 Interest Rate Swap		0
Total liabilities at fair value		0
Level 2
Assets:
FX Contracts		600,000
Total assets at fair value		600,000
Liabilities:
FX Contracts		1,900,000
2013 Interest Rate Swap		900,000
Total liabilities at fair value		2,800,000
Level 3
Assets:
FX Contracts		0
Total assets at fair value		0
Liabilities:
FX Contracts		0
2013 Interest Rate Swap		0
Total liabilities at fair value		$ 0