Long term debt, notes payable, and capital lease obligations - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended					12 Months Ended			1 Months Ended		12 Months Ended		1 Months Ended
	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2014 Minimum Agreement	Jun. 30, 2014 Minimum in Any One Quarter Within Four Consecutive Quarters	Sep. 30, 2012 Real Estate Term Loan One	Sep. 30, 2012 Real Estate Term Loan Two	Jun. 30, 2014 Revolving Credit Facility Libor Rate	Jun. 30, 2014 Revolving Credit Facility Alternative Option For Interest Rate	Jun. 30, 2014 Equipment Financing Facilities	Sep. 30, 2012 Hollywood Way Mortgage	Sep. 30, 2012 Vine Street Mortgages	Jun. 30, 2014 Credit Agreement	Jun. 30, 2014 Minimum trailing	Sep. 30, 2014 Subsequent Event [Member]	Sep. 30, 2014 Subsequent Event [Member] Minimum Agreement	Sep. 30, 2014 Subsequent Event [Member] Minimum in Any One Quarter Within Four Consecutive Quarters	Sep. 30, 2014 Subsequent Event [Member] Minimum trailing	Sep. 30, 2014 Subsequent Event [Member] Minimum trailing Minimum Agreement	Sep. 30, 2014 Subsequent Event [Member] Minimum trailing Minimum in Any One Quarter Within Four Consecutive Quarters
Debt Instrument [Line Items]
Credit agreement		$ 2,000,000							$ 1,250,000
Debt instruments, amortization period (in years)		25 years
Debt instruments, principal amount due period (in years)		10 years
Outstanding borrowings									300,000
Interest rate spread							3.50%	2.50%	3.00%
Credit agreement, interest rate		5.00%						1.75%	3.89%
Per annum assessed on the unused portion of the credit commitment								0.25%
General terms, tangible net worth		6,900,000		8,500,000										7,000,000		6,250,000
General terms, quarterly EBITDA		200,000	500,000	750,000										500,000	750,000	250,000
General terms, quarterly fixed charge ratio		0.69	1.25	0.24									1.25	0.70	1.25		1.25	0.75	0.25
Break-up fee, in connection with the termination of the Credit agreement												30,000
Long term construction loan agreements, value					5,500,000	3,100,000
Line of credit facility borrowing capacity		borrowings limited to the lesser of (a) 80% of eligible accounts receivable, as defined, less $600,000 or (b) $1,000,000.
Proceeds from Issuance of Debt										126,000	491,000
Repayments of Debt										5,400,000	3,566,000
Cash Used In Financing Transaction Net Of Transaction Costs	365,000
Proceeds from Sale of Buildings		$ 1,600,000