BORROWINGS (Details)		1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 24, 2014 USD ($)	Nov. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Future principal payments on the Facility
Long-term debt			$ 39,502,000		$ 39,502,000		$ 39,502,000		$ 8,843,000
Proceeds under Master Lease Agreement					6,075,000	$ 0	11,773,000	$ 0
Long-term debt			39,502,000		39,502,000		39,502,000		8,843,000
Other current liabilities, net			1,577,000		1,577,000		1,577,000		581,000
Proceeds from short-term debt					0	5,500,000	0	5,500,000
Computer equipment acquired under capital lease obligations					0	362,000	0	362,000
Payment of capital lease obligation					0	362,000	0	$ 362,000
Future payment obligations under capital leases									0
Accumulated depreciation			174,300,000		174,300,000		174,300,000		156,800,000
Depreciation			7,415,000	$ 6,232,000	19,710,000	17,384,000
Equipment under capital leases
Future principal payments on the Facility
Fixed assets			16,200,000		16,200,000		16,200,000		10,000,000
Accumulated depreciation			7,200,000		7,200,000		7,200,000		4,600,000
Depreciation			948,000	$ 218,000	2,400,000	$ 632,000
U.S. Bank
Debt Instrument [Line Items]
Letters of credit, outstanding amount			430,000		430,000		430,000		430,000
Real estate loan and term loan
Future principal payments on the Facility
Long-term Debt, Gross			40,900,000		40,900,000		40,900,000
Master Lease Agreement [Member] | U.S. Bank Equipment Finance [Member]
Debt Instrument [Line Items]
Debt instrument, term		60 months
Future principal payments on the Facility
2016 (Remainder)			553,000		553,000		553,000
2017			2,260,000		2,260,000		2,260,000
2018			2,339,000		2,339,000		2,339,000
2019			2,419,000		2,419,000		2,419,000
2020			2,399,000		2,399,000		2,399,000
Thereafter			345,000		345,000		345,000
Long-term debt			10,315,000		10,315,000		10,315,000
Termination Period		12 months
Capital Leases, Repurchase Option, Amount		$ 1.00
Proceeds under Master Lease Agreement					6,100,000
Long-term debt			10,315,000		$ 10,315,000		10,315,000
Weighted average interest rate (as a percent)					3.50%
Gain (loss) on Master Lease Agreement		0
Maximum borrowing capacity		$ 20,000,000
Commercial purchasing card
Future principal payments on the Facility
Outstanding balance			636,000		$ 636,000		636,000		641,000
Unused borrowing capacity			4,400,000		$ 4,400,000		4,400,000		$ 4,400,000
Loan Agreement
Debt Instrument [Line Items]
Debt instrument, face amount	$ 55,800,000
Loan to value ratio	80.00%
Fixed charge coverage ratio, term					12 months
Fixed charge coverage ratio					1.15
Cash flow leverage ratio, term					12 months
Minimum liquidity					$ 50,000,000
Debt instrument, increase to borrowing capacity			20,000,000		20,000,000		20,000,000
Future principal payments on the Facility
2016 (Remainder)			0		0		0
2017			1,145,000		1,145,000		1,145,000
2018			1,145,000		1,145,000		1,145,000
2019			1,145,000		1,145,000		1,145,000
2020			1,145,000		1,145,000		1,145,000
Thereafter			36,355,000		36,355,000		36,355,000
Long-term debt			40,935,000		40,935,000		40,935,000
Long-term debt			40,935,000		$ 40,935,000		40,935,000
Loan Agreement | During construction phase
Debt Instrument [Line Items]
Cash flow leverage ratio					3.00
Loan Agreement | Following construction phase
Debt Instrument [Line Items]
Cash flow leverage ratio					2.50
Loan Agreement | Default rate
Debt Instrument [Line Items]
Interest rate margin on variable rate basis (as a percent)					2.00%
Loan Agreement | Revolving credit facility
Debt Instrument [Line Items]
Debt instrument, face amount	$ 10,000,000
Debt instrument, term	3 years
Loan Agreement | Revolving credit facility | LIBOR
Debt Instrument [Line Items]
Interest rate margin on variable rate basis (as a percent)	2.00%
Loan Agreement | Revolving credit facility | Alternate Base Rate
Debt Instrument [Line Items]
Interest rate margin on variable rate basis (as a percent)	1.00%
Loan Agreement | Senior secured real estate loan
Debt Instrument [Line Items]
Debt instrument, face amount	$ 45,800,000
Loan Agreement | Term loan
Debt Instrument [Line Items]
Debt instrument, term					6 years 9 months
Loan Agreement | Real estate loan and term loan
Debt Instrument [Line Items]
Fixed rate following interest rate swap	4.60%
Annual principal payment			1,100,000		$ 1,100,000		1,100,000
Periodic payment terms, balloon payment			$ 38,000,000		$ 38,000,000		$ 38,000,000
Loan Agreement | Real estate loan and term loan | LIBOR
Debt Instrument [Line Items]
Interest rate margin on variable rate basis (as a percent)	2.00%
Loan Agreement | Real estate loan and term loan | Alternate Base Rate
Debt Instrument [Line Items]
Interest rate margin on variable rate basis (as a percent)	1.00%