H. FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Fair Value Disclosures [Abstract]

Schedule of assets and liabilities at fair value

The following table presents a summary of the Company’s financial instruments measured at fair value on a recurring basis as of December 31, 2017 (in thousands):

	Quoted prices		Significant
	in active		other
	markets for		observable		Significant
	identical		remaining		unobservable
	assets (Level 1)		inputs (Level 2)		inputs (Level 3)		Total
Assets:
Cash and cash equivalents	$	82,936	$	—	$	—	$	82,936
Restricted cash		1,012		—		—		1,012
Short term investments		36		—		—		36
Total assets	$	83,984	$	—	$	—	$	83,984
Liabilities:
Bank acceptance payable		—	$	—		—	$	—
Total liabilities	$	—	$	—	$	—	$	—

The following table presents a summary of the Company’s financial instruments measured at fair value on a recurring basis as of December 31, 2016 (in thousands):

	Quoted prices		Significant
	in active		other
	markets for		observable		Significant
	identical		remaining		unobservable
	assets (Level 1)		inputs (Level 2)		inputs (Level 3)		Total
Assets:
Cash and cash equivalents	$	50,224	$	—	$	—	$	50,224
Restricted cash		1,740		—		—		1,740
Short term investments		44		—		—		44
Total assets	$	52,008	$	—	$	—	$	52,008
Liabilities:
Bank acceptance payable		—	$	307		—	$	307
Total liabilities	$	—	$	307	$	—	$	307